【作者】 张东升； 毛君； 于海洋； 赵西贝；

【Author】 ZHANG Dong-sheng;MAO Jun;YU Hai-yang;ZHAO Xi-bei;School of Mechanical Engineering,Liaoning Technical University;

【机构】 辽宁工程技术大学机械工程学院；

【摘要】 介绍了一种新型的"蛇行"胶带输送机,考虑输送带非线性特性及机架间的耦合作用,利用有限元方法构建了"T"型输送带、机架以及整机的动力学模型,并进行动力学仿真分析。比较了直接启动与可控启动,自由停机与外载荷停机,输送带突然卡死等工况对系统动力学特性的影响,通过分析得出直接启动胶带最大张力为5 316 N,可控反"S"启动输送带张力最大值为3 728 N,降低最大张力幅度达30%,动张力系数2.3下降到1.6;自由停机最大载荷波动1 320 N,外载荷制动最大载荷波动1 856 N,其动张力系数由2.75提高到7.5左右;卡死工况最大张力瞬时值达到3.2×10~4 N;分析结果为优化设计启动策略,合理确定制动力提供一定依据。更多还原

【Abstract】 This paper introduces a new type of Hunting belt conveyor,conveyor consider nonlinear characteristics and coupling between racks,using the finite element method to build a "T" type conveyor,racks,and dynamic model of the machine;and dynamics simulation analysis.Compared the direct start and controlled start,freewheel and external load down the conveyor belt sudden death card and other conditions affecting dynamics of the system,obtained by analyzing the largest direct start tape tension 5 316 N,controllable anti "S" start conveyor belt tension maximum of 3 728 N,reduce the maximum tension a rate of 30%,dynamic tension coefficient dropped 2.3 to 1.6;freewheel maximum load fluctuations 1 320 N,external load brake maximum load fluctuations 1 856 N,its dynamic tension coefficient from 2.75 up to 7.5 about;stuck working conditions instantaneous value reaches maximum tension 3.2 x10~4 N;analytical results for the optimal design startup strategy to provide a reasonable basis for determining the braking force.更多还原